The calcium ion solubility of gypsum and BaihuDecoction all increased with extend time of soak.
石膏和复方药液中钙离子溶出量随浸泡时间延长而增加，随煎煮时间增加而降低。
2
ObjectiveTo study the content of calcium ion solubility with different compatibility and to explore the compatible regularity of BaihuDecoction.
目的通过研究不同配伍条件下药液中钙离子溶出量变化，探讨白虎汤的配伍规律。
3
ResultsAll of herbs in BaihuDecoction contain calcium. Gypsum had the highest content of calcium, followed by Rhizoma Anemarrhenae and Licoroce, Rice had the lowest.